28101051 has 48 divisors (see below), whose sum is σ = 47848320. Its totient is φ = 15701760.

The previous prime is 28101049. The next prime is 28101067. The reversal of 28101051 is 15010182.

It is not a de Polignac number, because 28101051 - 2¹ = 28101049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28101001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99156 + ... + 99438.

It is an arithmetic number, because the mean of its divisors is an integer number (996840).

Almost surely, 2^28101051 is an apocalyptic number.

28101051 is a deficient number, since it is larger than the sum of its proper divisors (19747269).

28101051 is a wasteful number, since it uses less digits than its factorization.

28101051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 28101051 is about 5301.0424446518. The cubic root of 28101051 is about 304.0237566557.

The spelling of 28101051 in words is "twenty-eight million, one hundred one thousand, fifty-one".